Today I received a pair of Cambridge SoundWorks S300 surround speakers. Due to the nature of my home theatre room, I will need to place these on the back walls instead of on the sides of the listening area. If the speakers were going on the sides, I would normally switch them to dipole mode and be done with it. Since they're on the back walls however, I was thinking of using either the bipole or monopole mode, as dipole doesn't make sense to me in this particular instance. While I realize I need to go by what sounds best to me, I would appreciate hearing the thoughts of anyone who has these speakers.